Cached · just now
81/100 SECURITY SCORE

Certificate Information

Subject
C=US, ST=California, L=San Francisco, O=Fastly, Inc., CN=default.ssl.fastly.net
Issuer
C=BE, O=GlobalSign nv-sa, CN=GlobalSign RSA OV SSL CA 2018
Valid From
February 09, 2026
Valid Until
March 13, 2027 203 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
CD:6E:83:8B:9B:FE:31:CA:B8:B3:D5:C8:58:B0:D6:22:3F:E8:4E:CE:23:6C:1F:DB:28:1B:E9:3C:30:2E:1E:6E
Alternative Names

Security Configuration

TLS Protocols
TLS 1.2 TLS 1.3
Forward Secrecy
Supported (Modern clients use PFS)

CAA Records (Certificate Authority Authorization)

CAA Records
Not Configured (Any CA can issue certificates)
CAA Issues
  • No CAA records configured - any CA can issue certificates
Recommendations
  • Implement CAA records to restrict which CAs can issue certificates for your domain
  • This adds an extra layer of security against unauthorized certificate issuance
  • Example: Add CAA record 'example.com. CAA 0 issue "letsencrypt.org"'
  • Consider adding 'iodef' record to receive security incident reports